Adding GUI text which appears using a Trigger

Here is the most simple way i found how to do this, all i did was import my Photoshop image, turn it to a GUI texture, give it an invisible collider and set that as a Trigger, Then simply add the code which is in one of the below screenshots and add the text to the object and words 1 selections. 

I have also added a secret pathway to an upper ledge along the right wall, try it out here..

GUI Text test